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AYDAR-ARNASAY LAKES: ANALYSIS OF THE PRESENT DEVEPOMENT ASPECTS 61
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- AYDAR-ARNASAY LAKES SYTEM FATE: POSSIBLE FUTURE DEVELOPMENT TRENDS 87
- DISCUSSION 117
- List of Figures
AYDAR-ARNASAY LAKES: ANALYSIS OF THE PRESENT DEVEPOMENT ASPECTS 61
The AALS current ecological situation 62 Socio-economic development: consideration of the main aspects 63 Fisheries: assessment of the AALS current trends 63 Impact of the USSR disintegration on fisheries 63 Assessment of the AALS current fisheries trends: 2000-2009 65 Analysis of fisheries legal framework 68 Concealment of fish production 70 Farmers’ problems 71 Fate of the Aydar-Arnasay lakes 73 Recreation 74 Environmental development: biodiversity conservation as the top priority for the AALS 76 Nuratau-Kyzylkum Biosphere Reserve as a model for biodiversity conservation 77 Background 77 Strategy 77 Description 77 Success 79 Ramsar Convention 79 Criteria for Identifying Wetlands of International Importance 80 Justification for the application of Criteria for Identifying the AALS as Wetlands of International Importance 82 Wetlands types 85 AYDAR-ARNASAY LAKES SYTEM FATE: POSSIBLE FUTURE DEVELOPMENT TRENDS 87Possible water management scenarios of the AALS future development 87 Background 87 GEO-3 scenarios as an example of successful scenario building 89 Elaboration of the water management scenarios 91 Development of the criteria for the water management scenarios 92 Change of the regional climate 94 CEU eTD Collection Development of the scenario conceptual scheme based on elaborated criteria 94 The water management scenarios: description 96 The Aydar-Arnasay lakes model development 98 Model structure and basics 98 Geographic and temporal scale 100 Basic assumptions 101 Input parameters 101 Main blocks 101 Chardara - AALS model interface 105 Chardara – AALS model simulation: experiments and results interpretation 107 Model simulation: Mode I “Model optimization” 107 CEU eTD Collection Quantitative assumptions 110 Model simulation: Mode II “Scenario analysis” 111 Scenario I “Ready for challenge” 111 Scenario II “Fall Behind” 114 Scenario III “Promising Future” 114 Scenario IV “Business as Usual” 115 DISCUSSION 117CONCLUSION 125REFERENCES 127CEU eTD Collection List of Tables Table 1. Basic indicators of water and land use in the Aral Sea Basin during 1960-2000 6 Table 2. Change dynamics of the AALS water-surface area and volume during 1969-2009 59 Table 3. The threatened list of bird species in the Aydar-Arnasay lakes 82 Table 4. Description of the water management scenarios 96 List of FiguresFigure 1. Location of the Aydar-Arnasay lakes system 1 Figure 2. The Aydar-Arnasay lakes system in 1954 (The Uzbek Soviet Encyclopedia, volume 14, 1971-1980) 45 Figure 3. The Chardara reservoir (adopted from Google Earth and modified by the author) . 47 Figure 4. The Aydar-Arnasay lakes system in 1993 (adopted from Google Earth and modified by the author) 49 Figure 5. The Toktogul Reservoir 50 Figure 6. Water discharges from the Chardara reservoir to the AALS in the period of 1993- 2005 (Mamatov and Kurnanbaev 2006) 52 Figure 7. Initial steps taken for the AALS calculation (screenshot from Google Earth) 55 Figure 8. Integration of six SRTM images in the Arcview Program 56 Figure 9. Digital Elevation Map (DEM) created by Arcview Program 56 Figure 10. Preparation stage: integration of the satellite images 58 Figure 11. Working with the AALS processed image in the Arcview Program 58 Figure 12. Change dynamics of the Aydar-Arnasay lakes system during 1969-2009 59 Figure 13. Time changes of amount of fish captured in the Aydar-Arnasay lakes and Uzbekistan in 1987-2005 64 Figure 14. Time changes of carp catch in the Aydar-Arnasay lakes and Uzbekistan 65 Figure 15. Recreational activity in the Aydar-Arnasay lakes system (adopted from World database on protected Areas and modified by the author) 75 CEU eTD Collection Figure 16. Geographical location of the Nuratay-Kyzylkum Biosphere Reserve (UNEP 2007) .................................................................................................................................................. 78 Figure 17. Ramsar boundaries of the Aydar-Arnasay lakes site (http://ramsar.wetlands.org/Database/Searchforsites) 80 Figure 18. Asian Migratory Bird Flyways (Source: U.S. Fish and Wildlife Service) 84 Figure 19. Indicative map of the Central-Asian Indian Flyway region (Source: UNEP 2005)84 Figure 20. Scenario dynamics (Mietzner and Reger 2005) 88 Figure 21. Conceptual scheme of GEO-scenarios 90 Figure 22. Backbone of the water management scenarios conceptual scheme 95 Figure 23. Conceptual scheme of the elaborated water management scenarios 96 Figure 24. The model screenshot demonstrating the basic block of the model 99 Figure 25. Geographical location of the simulated area 100 Figure 26. The model block “Chardara – Aydar-Arnasay lakes system” 103 Figure 27. The model block “Environmental factors” 104 Figure 28. The model block “Scenario analysis” 105 Figure 29. Fragment of the model interface presenting main menu 106 Figure 30. Fragment of the model interface presenting model modes including control parameters with management options 106 Figure 31. a) Amount of water discharges needed for the AALS maintaining at the temperature of 14,8ºC 108 Figure 32. b) Amount of water discharges needed for the AALS maintaining at the temperature of 15,8ºC 108 Figure 33. c) Amount of water discharges needed for the AALS maintaining at the temperature of 16,8ºC 109 Figure 34. Quantitative description of the water management scenarios 111 Figure 35. The AALS volume change in sub-scenario Ia (Scenario I “Ready for Challenge”) ................................................................................................................................................ 112 Figure 36. The AALS volume change in sub-scenario Ib (Scenario I “Ready for Challenge”) ................................................................................................................................................ 113 Figure 37. The AALS volume change in Scenario II “Fall Behind” 114 Figure 38. The AALS volume change in Scenario III “Promising Future” 115 CEU eTD Collection Figure 39. The AALS volume change in Scenario IV “Business as Usual” 116 CEU eTD Collection Download 1.89 Mb. Do'stlaringiz bilan baham: |
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